Cruise Control max speed issue

[puddles]

I have a 1991 81vx ltd. I would appreciate if anybody can tell me why the maximum speed that I can set with the cruise is 110km/hr. I have tried many other speeds, anything lower works fine, and I can drive faster than 110km/hr but the cruise will only work at 110km/hr or lower. If anybody knows why this is please let me know, or if you know how to correct this I would appreciate it.

 

[Grench]

Check for a vac leak? I'm wondering if it can't hold the vac enough to pull beyond that past the spring tension on the throttle. Just a shot.

 

[AllenTenT]

If thats a jap spec its preset like that from factory as far as I know,
I have a mod somewhere to fix it I can dig out,
Al

 

[Martin White]

I have the same truck. They are all limited to that speed. It's a factory setting. There is probalby a clever way to change it but there is nothing wrong with your truck.

 

[AllenTenT]

I posted some info in this thread https://forum.ih8mud.com/showthread.php?t=104835
It has been done

 

[puddles]

Thanks for the responses, although I have done plenty of soldering I guess I will keep the current cruise limit in place, probably save me some money in tickets anyway

Thanks again

 

[Martin White]

You can go a little faster with bigger tires. For instance, on mine, I'm actually going about 118 kph when the dial says 110. If you're running 285's you'll be going a little less but still more than 110.